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Dynamical preparation of U(1) quantum spin liquids in an analogue quantum simulator
Simon Karch, Melissa Will, Irene Prieto Rodriguez +7
Locally constrained gauge theories underpin our understanding of fundamental interactions in particle physics and the emergent behaviour of quantum materials. In strongly correlate…
Extracting transport coefficients from local ground-state currents
Felix A. Palm, Alexander Impertro, Monika Aidelsburger +1
Transport properties are central to characterizing quantum matter, yet their extraction typically requires external forcing and time-resolved measurements. In this work, we propose…
Probing disorder-driven topological phase transitions via topological edge modes with ultracold atoms in Floquet-engineered honeycomb lattices
Alexander Hesse, Johannes Arceri, Moritz Hornung +2
One of the most fascinating properties of topological phases of matter is their robustness to disorder and imperfections. Although several experimental techniques have been develop…
Quantum simulation of fermionic non-Abelian lattice gauge theories in D with built-in gauge protection
Gaia De Paciani, Lukas Homeier, Jad C. Halimeh +2
Recent advancements in the field of quantum simulation have significantly expanded the potential for applications, particularly in the context of lattice gauge theories (LGTs). Mai…
Probing quantum many-body dynamics using subsystem Loschmidt echos
Simon Karch, Souvik Bandyopadhyay, Zheng-Hang Sun +9
The Loschmidt echo - the probability of a quantum many-body system to return to its initial state following a dynamical evolution - generally contains key information about a quant…
Realization of strongly-interacting Meissner phases in large bosonic flux ladders
Alexander Impertro, SeungJung Huh, Simon Karch +3
Periodically driven quantum systems can realize novel phases of matter that are not present in time-independent Hamiltonians. One important application is the engineering of synthe…
Emergent interaction-induced topology in Bose-Hubbard ladders
David Wellnitz, Gustavo A. Domínguez-Castro, Thomas Bilitewski +3
We investigate the quantum many-body dynamics of bosonic atoms hopping in a two-leg ladder with strong on-site contact interactions. We observe that when the atoms are prepared in…
The anomalous Floquet Anderson insulator in a continuously driven optical lattice
Arijit Dutta, Efe Sen, Jun-Hui Zheng +2
The anomalous Floquet Anderson insulator (AFAI) has been theoretically predicted in step-wise periodically driven models, but its stability under more general driving protocols has…
Local readout and control of current and kinetic energy operators in optical lattices
Alexander Impertro, Simon Karch, Julian F. Wienand +4
Quantum gas microscopes have revolutionized quantum simulations with ultracold atoms, allowing to measure local observables and snapshots of quantum states. However, measurements s…
Cold-atom quantum simulators of gauge theories
Jad C. Halimeh, Monika Aidelsburger, Fabian Grusdt +2
Gauge theories represent a fundamental framework underlying modern physics, constituting the basis of the Standard Model and also providing useful descriptions of various phenomena…
Frustrated extended Bose-Hubbard model and deconfined quantum critical points with optical lattices at the anti-magic wavelength
Niccolò Baldelli, Cesar R. Cabrera, Sergi Julià-Farré +2
The study of geometrically frustrated many-body quantum systems is of central importance to uncover novel quantum mechanical effects. We design a scheme where ultracold bosons trap…
The cold-atom elevator: From edge-state injection to the preparation of fractional Chern insulators
Botao Wang, Monika Aidelsburger, Jean Dalibard +2
Optical box traps for cold atoms offer new possibilities for quantum-gas experiments. Building on their exquisite spatial and temporal control, we propose to engineer system-reserv…
Emergence of fluctuating hydrodynamics in chaotic quantum systems
Julian F. Wienand, Simon Karch, Alexander Impertro +6
A fundamental principle of chaotic quantum dynamics is that local subsystems eventually approach a thermal equilibrium state. Large subsystems thermalize slower: their approach to…
Real-space detection and manipulation of topological edge modes with ultracold atoms
Christoph Braun, Raphaël Saint-Jalm, Alexander Hesse +3
Conventional topological insulators exhibit exotic gapless edge or surface states, as a result of non-trivial bulk topological properties. In periodically-driven systems the bulk-b…
Preparing and Analyzing Solitons in the sine-Gordon Model with Quantum Gas Microscopes
Elisabeth Wybo, Alvise Bastianello, Monika Aidelsburger +2
The sine-Gordon model emerges as a low-energy theory in a plethora of quantum many-body systems. Here, we theoretically investigate tunnel-coupled Bose-Hubbard chains with strong r…
derivation of lattice gauge theory dynamics for cold gases in optical lattices
Federica Maria Surace, Pierre Fromholz, Nelson Darkwah Oppong +2
We introduce a method for quantum simulation of U lattice gauge theories coupled to matter, utilizing alkaline-earth(-like) atoms in state-dependent optical lattices. The prop…
An unsupervised deep learning algorithm for single-site reconstruction in quantum gas microscopes
Alexander Impertro, Julian F. Wienand, Sophie Häfele +6
In quantum gas microscopy experiments, reconstructing the site-resolved lattice occupation with high fidelity is essential for the accurate extraction of physical observables. For…
Engineering and probing non-Abelian chiral spin liquids using periodically driven ultracold atoms
Bo-Ye Sun, Nathan Goldman, Monika Aidelsburger +1
We propose a scheme to implement Kitaev's honeycomb model with cold atoms, based on a periodic (Floquet) drive, in view of realizing and probing non-Abelian chiral spin liquids usi…
Thouless pumping and topology
Roberta Citro, Monika Aidelsburger
Thouless pumping provides one of the simplest manifestations of topology in quantum systems, and has attracted a lot of recent interest, both theoretically and experimentally. Sinc…
Fast long-distance transport of cold cesium atoms
Till Klostermann, Cesar R. Cabrera, Hendrik von Raven +4
Transporting cold atoms between distant sections of a vacuum system is a central ingredient in many quantum simulation experiments, in particular in setups, where a large optical a…
Stabilizing lattice gauge theories through simplified local pseudo generators
Jad C. Halimeh, Lukas Homeier, Christian Schweizer +3
The postulate of gauge invariance in nature does not lend itself directly to implementations of lattice gauge theories in modern setups of quantum synthetic matter. Unavoidable gau…
Experimental realization of fragmented models in tilted Fermi-Hubbard chains
Thomas Kohlert, Sebastian Scherg, Pablo Sala +4
Quantum many-body systems may defy thermalization even without disorder. Intriguingly, non-ergodicity may be caused by a fragmentation of the many-body Hilbert-space into dynamical…
Cold atoms meet lattice gauge theory
Monika Aidelsburger, Luca Barbiero, Alejandro Bermudez +19
The central idea of this review is to consider quantum field theory models relevant for particle physics and replace the fermionic matter in these models by a bosonic one. This is…
Bosonic Pfaffian State in the Hofstadter-Bose-Hubbard Model
Felix A. Palm, Maximilian Buser, Julian Léonard +3
Topological states of matter, such as fractional quantum Hall states, are an active field of research due to their exotic excitations. In particular, ultracold atoms in optical lat…